Campaign look like is sent 100% but emails are not delivered


New Member
Campaign look like is sent 100% but emails are not delivered.
I noticed that because in the report I had 0% open emails of a campaign (normally I have about 20% - 40%). I then test it to send it to myself to in a test list with 4 emails of mine. I sent the campaign and it delivers (to me) only some of the emails and specifically only those that are under the same domain as the email I use in the delivery servers. The rest emails did not delivered at all.

So, when I am trying to send a campaign to a list with my clients, no emails are delivered, though it seems like 100% sent.

The server is active (both the Delivery Server, the Bounce Server and Feedback Loop Servers) and I have tried on the delivery Server port 25, 26 and 587 with protocol to None, but nothing is working. It use to work fine with 26.

Any ideas?

Thank you!
Last edited:
@Thodoris - Have you checked Backend > Misc > Campaign Delivery Logs after you have sent your campaign?
if mailwizz fails to deliver, you'll see there why.